OpenAI
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Listed July 2026
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Multimodal Foundation
GPT-5.6 Sol
Arena #20 • score 1485 ±4
Proprietary model from OpenAI, listed July 2026. Arena text score 1485 (#20 of 414 entries). $4.00 input / $20.00 output per 1M tokens. 1.05M tokens context.
Parameters
Not disclosed
Context Window
1.05M tokens
Input / 1M tokens
$4.00
Output / 1M tokens
$20.00
Benchmark Results
- Arena Text Elo: 1485 (#20 of 414 on arena.ai · ±4 · 38,490 votes · variant: gpt-5.6-sol-xhigh)
- AA Intelligence Index: 47 (Artificial Analysis v4.3 · best setting: GPT-5.6 Sol (Max) · checked 2026-10-11)
- AA Coding Index: 78.3 (Artificial Analysis v4.3 · best setting: GPT-5.6 Sol (Xhigh) · checked 2026-10-11)
- AA Agentic Index: 50.2 (Artificial Analysis v4.3 · best setting: GPT-5.6 Sol (Max) · checked 2026-10-11)